fix(abigen): SolStruct derives edge case

ethers-contract/ethers-contract-abigen/src/util.rs

@@ -232,11 +232,15 @@ fn _derive_builtin_traits_struct(
     for (field, ty) in fields.iter().zip(params) {
         match &field.ty {
             FieldType::Struct(s_ty) => {
-                // a tuple here is actually a sol struct so we skip it
-                if !matches!(ty, ParamType::Tuple(_)) {
-                    *def &= can_derive_default(ty);
-                    *others &= can_derive_builtin_traits(ty);
+                // `ty` here can only be `Tuple`, `Array(Tuple)`, or `FixedArray(Tuple(), len)`.
+                // We recurse on the Tuple's fields and check the FixedArray's length.
+                match s_ty {
+                    StructFieldType::FixedArray(_, len) => {
+                        *def &= *len <= MAX_SUPPORTED_ARRAY_LEN;
+                    }
+                    _ => {}
                 }
+
                 let id = s_ty.identifier();
                 // TODO: InternalStructs does not contain this field's ID if the struct and field
                 // are in 2 different modules, like in `can_generate_internal_structs_multiple`

ethers-contract/tests/it/abigen.rs

@@ -766,6 +766,15 @@ fn can_generate_large_output_struct() {
     let _r = GetByIdReturn(Info::default());
 }
 
+#[test]
+fn can_generate_large_structs() {
+    abigen!(LargeStructs, "ethers-contract/tests/solidity-contracts/LargeStructs.json");
+
+    assert_struct::<PoolStorage>();
+    assert_struct::<AssetStorage>();
+    assert_struct::<ChainStorage>();
+}
+
 #[test]
 fn can_generate_complex_function() {
     abigen!(

ethers-contract/tests/solidity-contracts/LargeStructs.json

@@ -0,0 +1 @@
+[{"inputs":[],"name":"getChainStorage","outputs":[{"components":[{"components":[{"internalType":"uint32","name":"shortFundingBaseRate8H","type":"uint32"},{"internalType":"uint32","name":"shortFundingLimitRate8H","type":"uint32"},{"internalType":"uint32","name":"fundingInterval","type":"uint32"},{"internalType":"uint32","name":"liquidityBaseFeeRate","type":"uint32"},{"internalType":"uint32","name":"liquidityDynamicFeeRate","type":"uint32"},{"internalType":"uint96","name":"mlpPriceLowerBound","type":"uint96"},{"internalType":"uint96","name":"mlpPriceUpperBound","type":"uint96"},{"internalType":"uint32","name":"lastFundingTime","type":"uint32"},{"internalType":"uint32","name":"sequence","type":"uint32"},{"internalType":"uint32","name":"strictStableDeviation","type":"uint32"}],"internalType":"struct IReader.PoolStorage","name":"pool","type":"tuple"},{"components":[{"internalType":"bytes32","name":"symbol","type":"bytes32"},{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"address","name":"muxTokenAddress","type":"address"},{"internalType":"uint8","name":"id","type":"uint8"},{"internalType":"uint8","name":"decimals","type":"uint8"},{"internalType":"uint56","name":"flags","type":"uint56"},{"internalType":"uint32","name":"initialMarginRate","type":"uint32"},{"internalType":"uint32","name":"maintenanceMarginRate","type":"uint32"},{"internalType":"uint32","name":"positionFeeRate","type":"uint32"},{"internalType":"uint32","name":"liquidationFeeRate","type":"uint32"},{"internalType":"uint32","name":"minProfitRate","type":"uint32"},{"internalType":"uint32","name":"minProfitTime","type":"uint32"},{"internalType":"uint96","name":"maxLongPositionSize","type":"uint96"},{"internalType":"uint96","name":"maxShortPositionSize","type":"uint96"},{"internalType":"uint32","name":"spotWeight","type":"uint32"},{"internalType":"uint32","name":"longFundingBaseRate8H","type":"uint32"},{"internalType":"uint32","name":"longFundingLimitRate8H","type":"uint32"},{"internalType":"uint8","name":"referenceOracleType","type":"uint8"},{"internalType":"address","name":"referenceOracle","type":"address"},{"internalType":"uint32","name":"referenceDeviation","type":"uint32"},{"internalType":"uint32","name":"halfSpread","type":"uint32"},{"internalType":"uint128","name":"longCumulativeFundingRate","type":"uint128"},{"internalType":"uint128","name":"shortCumulativeFunding","type":"uint128"},{"internalType":"uint96","name":"spotLiquidity","type":"uint96"},{"internalType":"uint96","name":"credit","type":"uint96"},{"internalType":"uint96","name":"totalLongPosition","type":"uint96"},{"internalType":"uint96","name":"totalShortPosition","type":"uint96"},{"internalType":"uint96","name":"averageLongPrice","type":"uint96"},{"internalType":"uint96","name":"averageShortPrice","type":"uint96"},{"internalType":"uint128","name":"collectedFee","type":"uint128"},{"internalType":"uint256","name":"deduct","type":"uint256"}],"internalType":"struct IReader.AssetStorage[]","name":"assets","type":"tuple[]"},{"components":[{"internalType":"uint8","name":"dexId","type":"uint8"},{"internalType":"uint8","name":"dexType","type":"uint8"},{"internalType":"uint8[]","name":"assetIds","type":"uint8[]"},{"internalType":"uint32[]","name":"assetWeightInDEX","type":"uint32[]"},{"internalType":"uint256[]","name":"totalSpotInDEX","type":"uint256[]"},{"internalType":"uint32","name":"dexWeight","type":"uint32"},{"internalType":"uint256","name":"dexLPBalance","type":"uint256"},{"internalType":"uint256[]","name":"liquidityBalance","type":"uint256[]"}],"internalType":"struct IReader.DexStorage[]","name":"dexes","type":"tuple[]"},{"internalType":"uint32","name":"liquidityLockPeriod","type":"uint32"},{"internalType":"uint32","name":"marketOrderTimeout","type":"uint32"},{"internalType":"uint32","name":"maxLimitOrderTimeout","type":"uint32"},{"internalType":"uint256","name":"lpDeduct","type":"uint256"},{"internalType":"uint256","name":"stableDeduct","type":"uint256"},{"internalType":"bool","name":"isPositionOrderPaused","type":"bool"},{"internalType":"bool","name":"isLiquidityOrderPaused","type":"bool"}],"internalType":"struct IReader.ChainStorage","name":"chain","type":"tuple"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint64[]","name":"orderIds","type":"uint64[]"}],"name":"getOrders","outputs":[{"internalType":"bytes32[3][]","name":"orders","type":"bytes32[3][]"},{"internalType":"bool[]","name":"isExist","type":"bool[]"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"subAccountIds","type":"bytes32[]"}],"name":"getSubAccounts","outputs":[{"components":[{"internalType":"uint96","name":"collateral","type":"uint96"},{"internalType":"uint96","name":"size","type":"uint96"},{"internalType":"uint32","name":"lastIncreasedTime","type":"uint32"},{"internalType":"uint96","name":"entryPrice","type":"uint96"},{"internalType":"uint128","name":"entryFunding","type":"uint128"}],"internalType":"struct IReader.SubAccountState[]","name":"subAccounts","type":"tuple[]"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"subAccountIds","type":"bytes32[]"},{"internalType":"uint64[]","name":"orderIds","type":"uint64[]"}],"name":"getSubAccountsAndOrders","outputs":[{"components":[{"internalType":"uint96","name":"collateral","type":"uint96"},{"internalType":"uint96","name":"size","type":"uint96"},{"internalType":"uint32","name":"lastIncreasedTime","type":"uint32"},{"internalType":"uint96","name":"entryPrice","type":"uint96"},{"internalType":"uint128","name":"entryFunding","type":"uint128"}],"internalType":"struct IReader.SubAccountState[]","name":"subAccounts","type":"tuple[]"},{"internalType":"bytes32[3][]","name":"orders","type":"bytes32[3][]"},{"internalType":"bool[]","name":"isOrderExist","type":"bool[]"}],"stateMutability":"pure","type":"function"}]